StringSpec
String finder

Browse all 788

Head to head

Diadem Solstice Pro 15L (1.35) vs MSV Focus Hex Soft 17L (1.20)

Focus Hex Soft 17L (1.20) leads on 4 of 6 measurements. The widest gap is string friction, where Solstice Pro 15L (1.35) is 9 percentile points ahead. Every figure is a testing-machine result at a fixed reference tension.

Measured, side by side

Diadem

Solstice Pro 15L (1.35)

Polyester · 15L ga

MSV

Focus Hex Soft 17L (1.20)

Polyester · 17L ga

Stiffness lower = softer, kinder on the arm
19360th pct
19462nd pct
Tension loss lower = stays where you strung it
2842nd pct
2638th pct
Energy return higher = livelier, more free power
8955th pct
9060th pct
Spin potential higher = more spin off the string bed
7.191st pct
7.393rd pct
Ball bite higher = grabs the ball harder
0.54490th pct
0.59495th pct
String friction lower = strings slide and snap back
0.07717th pct
0.08126th pct

Bars are percentile against all 788 strings, and the marked side is the one that measures better, which is not always the one you want. A firmer bed is worse for your elbow and better for your control, and no measurement knows which of those you came for.

Which one wins, by problem

Each string's standing on the site's rankings, out of every measured string in the database. This is where a comparison stops being arithmetic and starts being a decision.

Swapping between them: what tension?

Bed stiffness is published at one reference tension, so the only honest conversion is to scale it. These are starting points from 52 lb, not prescriptions. The calculator takes your own tension.

Coming from Solstice Pro 15L (1.35) at 52 lb

String Focus Hex Soft 17L (1.20) at 51.5 lb 23.4 kg

Coming from Focus Hex Soft 17L (1.20) at 52 lb

String Solstice Pro 15L (1.35) at 52.5 lb 23.8 kg

Hybrid: what if you used both?

Estimated, not measured. No hybrid combination has been tested as a bed. These figures are the two strings' own lab measurements weighted by how much of the bed each one actually is. Treat them as a guide to which way a pairing moves, never as lab data.

Solstice Pro 15L (1.35) mains / Focus Hex Soft 17L (1.20) crosses

Stiffness61st pct · 1 measured
Tension loss41st pct · 1 measured
Energy return56th pct · 1 measured
Spin potential92nd pct · 1 measured
Ball bite91st pct · 1 measured
String friction19th pct · 1 measured

Focus Hex Soft 17L (1.20) mains / Solstice Pro 15L (1.35) crosses

Stiffness61st pct · 1 measured
Tension loss40th pct · 1 measured
Energy return58th pct · 1 measured
Spin potential92nd pct · 1 measured
Ball bite94th pct · 1 measured
String friction23rd pct · 1 measured

Open this in the hybrid builder

Which goes dead first?

Estimated from tension loss, which is the only thing the database measures about ageing. This is when the bed stops playing the way you strung it, not when the string breaks.

Solstice Pro 15L (1.35)

~27 hours of play

Focus Hex Soft 17L (1.20)

~29 hours of play

Both strings in full

Every published measurement
StringGaugePriceStiff lb/inLoss %Power %SpinBite COFFriction COF
Diadem Solstice Pro 15L (1.35) Polyester15Lfind19328897.10.5440.077
MSV Focus Hex Soft 17L (1.20) Polyester17Lfind19426907.30.5940.081

Add a third string Solstice Pro 15L (1.35) in full Focus Hex Soft 17L (1.20) in full